[Bug 212021] xhci(4) broken with qemu-devel

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=212021

--- Comment #9 from Hans Petter Selasky <hselasky at FreeBSD.org> ---
Hi,

I looked into this yesterday and there are some missing pieces in the QEMU
control endpoint handling code. FreeBSD sends the SETUP, DATA and STATUS stage
as separate events, while QEMU expects them all at the same time. That's why
the getting the device descriptor times out. This part should be fixed in QEMU.
I might be able to provide a patch.

--HPS

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